<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
    <script src="https://cdn.jsdelivr.net/npm/vue@2/dist/vue.js"></script>
  </head>
  <body>
    <div id="root">
    </div>
    <script>
      const student = Vue.extend({
        template: `
             <div>
                <h2>学生名称：{{name}}</h2>
                <h2>学生年龄：{{age}}</h2>
             </div>
            `,
        data() {
          return {
            name: "帅静",
            age: 19,
          };
        },
      });

      const school = Vue.extend({
        template: `
             <div>
                <h2>学校名称：{{name}}</h2>
                <h2>学校地址：{{address}}</h2>
                <student></student>
             </div>
            `,
        data() {
          return {
            name: "尚硅谷",
            address: "北京",
          };
        },
        components: {
          student,
        },
      });
     
      const hello = Vue.extend({
          template: `<h1>欢迎来到尚硅谷学习</h1>
          `,
          data() {
              return {msg: '欢迎来到'}
          }
      })
      
      const app = Vue.extend({
          template: `
            <div>
               <school></school>
               <hello></hello>
            </div>
          `
          ,
          components: {
              school,
              hello,
          }
      })

      new Vue({
        template: `<app></app>`,
        el: "#root",
        components: {
          app
        },
      });
    </script>
  </body>
</html>
